A circular "No Parking" road sign has a diameter of 26 inches.

Mathematics

1 answer:

Roman55 [17]3 years ago

6 0

Answer:

i think 81.64

Step-by-step explanation:

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Solve for b 4a=2b-7

rodikova [14]

Answer:

4a+7 over 2 = b.

Step-by-step explanation:

First add 7 to both sides to get 2b by its self so you will have 4a+7=2b. Then, to get B by itself, divided both sides of the equation by to, so you will have 4a+7 (over 2) = B.

3 0

3 years ago

Read 2 more answers

Determine tan(t) if cos(t)= -3/5 and sin(t) >0

kupik [55]

$\bf cos(\theta)=\cfrac{adjacent}{hypotenuse}
\qquad 
% tangent
tan(\theta)=\cfrac{opposite}{adjacent}\\\\
-------------------------------\\\\
cos(t)=-\cfrac{\stackrel{adjacent}{3}}{\stackrel{hypotenuse}{5}}$

now, the hypotenuse is just a radius unit, so, is never negative, so, the fraction is negative because the numerator is negative, that is, the adjacent side is -3.

now, let's use the pythagorean theorem to find the opposite side.

$\bf \textit{using the pythagorean theorem}\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-a^2}=b\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
\end{cases}
\\\\\\
\pm\sqrt{5^2-(-3)^2}=b\implies \pm\sqrt{25-9}=b\implies \pm 4=b$

ok... so, which is it? the +/-? well, we also know that sin(t) >0, namely that the sine of the angle is positive, so, then is +4 then.

 $\bf tan(\theta)=\cfrac{opposite}{adjacent}\qquad \qquad tan(t)=\cfrac{4}{-3}\implies \boxed{tan(t)=-\cfrac{4}{3}}$

4 0

3 years ago

Please help! 9th grade math

Rzqust [24]

Answer:

They switched the w and the -15 at the end

Step-by-step explanation:

When you switch the inequality sign after multiplying or dividing a number, the variable stays on the side its on, even if it looks weird.

5 0

3 years ago

Find the value of x that makes m n. 1350 m (2x + 15) n 4

wolverine [178]

Answer:

cgkzfixgkxlgdgkxgftkxgkxtkkxfkixgkcitxhlckgxgkxjjxsfuxgixurzridutxtixti

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3 years ago

At Jefferson High School, there are 250 students who drive to school and 375students who ride the bus to school. The number of s

maw [93]

Answer:

Your answer is.....

The number of students who drive is 66.66% of them who ride

Mark it as brainlist answer . follow me for more answer.

Step-by-step explanation:

3 0

3 years ago